Stop-motion



'J. A. FENTQN.

STOP MOTION.

APPLICATION FILED JAN. l5| 1920.

1,353,226, I PatentedSept. 21,1920. v T

2 SHEETSSHEE I.

@461} Q M. I

UNITED STATEsflimimr; QFH Q J JoHN A. BENTON, or nonrii' aiiaovnn; nassaoi-iusnrrs,

To-rwhom it may concemafl I Be it known that 1, J an A; Fnn'ron, a citizen of the United States, residing at North Andover, in the countyof Essexand State of Massachusetts, have invented a new and useful Stop-Motion, of which the following is-a specification.

T hisinvention relates to new'and useful improvements in stop motion mechanisms for twisting or spinning frames, andit" is the primary object of the invention 'toprovide a device for automatically throwing the thread feeding rollers out of operation when the thread operating over the rollers has become broken, thus eliminating any' .posisi bility of the thread becoming snarled'or tangled. A further object oft-he invention is. to providc means controlled by the tension of the thread passing through-the frame, for accomplishing the operation .of'the stop motion; f

' lVith theforegoing and vother objects'in view which will appear. as the description proceeds, the invention resides in the combination and arrangement of parts andi'n the details of construction hereinafter de scribed and claimed, it being understood that changes" in the precise embodiment of the invention herein disclosed, maybe nade within the scopeof what is claimed, without departing from thespirit' of the-invention. 7 V

Referring to the drawings 1 Figure 1 illustrates a longitudinal sectional view through the feeding rolls con structed in accordance with the present invention; V j

Fig. 2 illustrates a side elevational view of the roll supporting bearings; and

Fig. 3 illustrates arear elevational view of the thread feeding roll. I

Referring to the drawings in detail, the reference character 5 designates the base of the frame which may be constructed'of any suitable" material and-the dimensions according to the size of the frame to be supported thereon.

The spaced bearings 6 are supported on the base 5, and extend upwardly therefrom the bearings 6 being shown as comprising slotted arms, the slotted portion beingindis cated at 7, and extends from the upper end 1 of the respective arms terminating at a point g I 2% having connect1o1iw1th the. welght 27,

adjacent the base 7 As before stated these arms raresuppiorted specificatioiiiof Letters l atent;

rollers and powerroller, butoat the Patented Sept; 21,1920"; Application filed :Ila'nuary 15, 1920: Se'rial lio- 35 l,"7 27. I I l l in spaced relation with each otherito sup- 3 port the thread feeding rollers ,8 and'9, and the power roller 10,- each of the rollers being prov ded with laterally extending shafts 1 1,

which shafts are o'f'a diameter equal to the r width of the slotted portions 7 'to permit freerotar-y movement of'the thread feeding '7 same t me restrict movement thereof;

I f The power rollerlO has connection with any'suita'ble power device to cause the rota-' tien ofthe power roller, and is provided with the gear 12 on one end thereof, 7 which gear'12'1s in meshjwith the gear 13 providedon'gthelowerthread feeding roller 9, so 'that movement of the pow r roller '10 I transmits'rotary motion to the, thread roller 9 through the gears 12 and 13. e

The 11pperTthreadfeeding roller '8 has its periphery contacting with 'theperiphery of the thread feeding roller 9 so "thatrotar movement ofythe'roll'ert) is imparted to the roller 8 to'cause'thethreadflgfwhichl is shown as'loo'pedaround the'roller 8,,to be fed between the rollersS and 9 to the .tWlStv ing machine. It is thereforeobviousthat the weight of the upper roller 8-" causes the same to contact with'th erolle'r 9 fat fall times; At the'fo'rward end of the base 5 is proe vided a supporting stan'dard'15, which has its upper portion cutaway as at 1-6 to provid'efa clearance for the thread guide 17, whi'chend is also apertured and embraces the shaft'lS t permit the thread guide 17 to' oscillate with relation to' the standard 15'.

v This'thread'guidefljincludes the laterally 4 extending arms19 and 2 0,;tl1e arms l9 being provided with rollerj2'1,']having the flanges 22 formed on opposite ends thereof v the flangesi22 providing a-guide way for the sthread'14 operating under the roller 2l,forr

preventing lateral movement of the thread,

and to insure the thread-being held in a proper feedings relation with the feeding rollers 8 and 9 Formed substantially intermediate the a guide for'the strap 24 formingfa part of the operating mechanism, the forward end" of said strap 24- having connection with the length of the power roller 10, is a cutjout portion 23, which cut out portion provides, s

thread guide 17 throughtherlink 25 which i whereby the strap 24. is caused to move in i rollers 9 and 10, by the tensions of the thread 14 passing over the thread guide 17, the thread 14 as before stated operates under the roller 22 a d over the rod 29 which is a part of the arm of the thread guide.

In view of the fact that the rod 29 is smaller in diameter than the roller 22, it will be seen that the thread 14 is under tension when the same 'is aassin 'throu h e the thread guide 17, which vtension causes thread through the lnaohine associated with the dev ce.

the thread guide 17 to pivot forwardly.

The block 28 is now held out of contact with the rollers 9 and 10, but if the thread 14 becomes broken due to the same being caught in the machine, the weight 27 will fall by gravity to a position in close proximity with the base 5, whereupon the wedge shaped block 28 moves between the rollers 9 and 10 with the'result that the rollers 8 and 9 are lifteduntil the gears 12 and 13 are out of mesh. It is therefore obvious that rotation of the power roller 10 does not affect the thread feeding rollers Sand 9, with the .resultthat the rollers 8 and 9 are held stationary and no longer feed the In view of the foregoing it is believed that a detail'description of the operation of the device, is unnecessary.

Having thus described the invention, what is claimed as new is rollers, said power roller'havinga groove formed therein, a pivoted thread guide over which the thread passes, a strap having connection with the thread guide, a weight o n power roller having a groove formed in the periphery thereof, a flexible member operating between the rollers and carrying means moving in the groove, a weightcarried at one end of the flexible member, means associated With the thread guide for'normally holding the first mentioned means out of contact with the rollers, and said weight adapted to move the first mentioned means between the rollers to cause the rollers to become disengaged. V p

3. A stop motion mechanism comprising in combination, thread guiding rollers, a power roller disposed under the thread guiding rollers for driving the thread guiding rollers, a flexible memberoperating between predetermined rollers, a wedge shaped member carried by the flexible member, the

power roller having means toeccommodate' the flexible member to prevent lateral movefiexible member for carrying the wedge shaped member over the power roller for disengaging the rollers and power roller, and'meansfor normally holding the wedge .7 ment thereof, a weight on one end of the I r shaped member out of contact with the power roller.

Intestimony that I claim the foregoing as 7 my own, I have hereto aflixed my signature in the presence of two witnesses. M

MR. JOHN A; FENTON. WVitnesses:

Lewis B. PARKHURST,

HAROLD W. BAIL Y. 

